Decorative grille for a vent



FIG. 1 is a perspective view showing the grille design;

FIG. 2 is a plan view of the grille;

FIG. 3 is a front elevation view; and,

FIG. 4 is a right side elevational view.

The bottom view of the grille is substantially the same as the plan view of FIG. 2; the rear elevational view is substantially the same as the front elevational view of FIG. 3; and the left side view is substantially the same as the right side view shown in FIG. 1.

The broken line showing in FIGS. 1, 3 and 4 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a decorative grille for a vent, as shown and described. 